Asc Engineered Solutions 318909009 Cast Iron Hex Bushing

Product Description

The ASC ENGINEERED SOLUTIONS 318909009 is a black cast iron hex bushing designed to reduce pipe thread sizes within a threaded piping system. This 4 inch x 1 inch bushing features a male 4-inch NPT end and a female 1-inch NPT end, allowing two pipes of different diameters to connect in-line. The hex profile enables wrench engagement for proper torque during installation. Weighing 3.59 pounds, it is a heavy-duty fitting intended for use in commercial and industrial plumbing, HVAC hydronic systems, and gas distribution lines. Licensed plumbers and pipefitters are the primary installers of this type of fitting.

This bushing is suited for residential and commercial applications where a large-diameter threaded pipe or valve must transition down to a 1-inch threaded connection. Typical scenarios include reducing main supply lines at equipment connections, boiler piping assemblies, and similar threaded pipe configurations. The black coating makes it appropriate for gas piping as well as water and steam systems where galvanized fittings are not specified.

Key Features

• Hex body profile allows standard pipe wrench or adjustable wrench engagement for secure installation
• Cast iron construction provides strength and durability in high-pressure threaded pipe assemblies
• Black coating suitable for gas, water, and steam piping applications
• 4 inch x 1 inch size handles significant diameter reduction in a single fitting
• Domestically sourced fitting

Compatibility

Designed as an OEM-style replacement or new-installation fitting for threaded cast iron pipe systems requiring a 4-inch to 1-inch reduction in residential and commercial plumbing, HVAC, and gas distribution applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC codes. Shut off and depressurize the line completely before removing or installing any threaded fitting. Apply an approved thread sealant or PTFE tape to the male threads before making up the joint. Do not over-tighten cast iron fittings, as the material is not ductile and can crack under excessive stress.

Technical Specifications

• Fitting Size: 4 inches x 1 inches
• Type: Hex Bushing
• Fitting Material: Cast Iron
• Coating: Black
• Item Weight: 3.59 pounds
• Origin: Domestic

Standard Information

• Brand: ASC ENGINEERED SOLUTIONS
• Manufacturer Part Number: 318909009